/Engine/Source/Editor/UnrealEd/Public/Kismet2/BlueprintEditorUtils.h
Callback for when a node has been found
typedef [TFunction](API\Runtime\Core\GenericPlatform\TFunction)< void([UBlueprint](API\Runtime\Engine\Engine\UBlueprint) *, [UK2Node](API\Editor\BlueprintGraph\UK2Node) *)> FOnNodeFoundOrUpdated